1.8 (A). A steel bar ABCD consists of three sections: AB is of 20 mm diameter and 200 mm long, BC is 25 mmsquare and 400 mm long, and CD is of 12 mm diameter and 200 mm long. The bar is subjected to an axial compressiveload which induces a stress of 30 MN/m² on the largest cross-section. Determine the total decrease in the length ofthe bar when the load is applied. For steel E 210 GN/m².[0.272 mm.]

AB bar diameter =20 mmBC bar diameter=25 mmCD bar diameter=12 mmAs the bar is subjected to…

Answered: 1.8 (A). A steel bar ABCD consists of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Q3: A steel rod is rigidly attached between an aluminum rod and a bronze rod as shown. Axial loads are applied at the positions indicated. Find the maximum value of P that will not exceed a stress in steel of 140 MPa, in aluminum of 90 MPa, or in bronze of 100 MPa. BRONZE = 500 mm² 4P STEEL A = 400 mm² 2.5 m 2.0 m ALUMINUM A = 200 mm² P 1.5 m 2 2P
A steel rod is stretched between two rigid walls and carries a tensile load of 5000 N at 20°C. If the allowable stress is not to exceed 130 MN/m² at -20 °C, what is the minimum diameter of the rod? Assume k = 11.7 µm/(m-°C); E = 200 Gpa A. 10.22 mm B. 11.22 mm C. 12.22 mm D. 13.22 mm Please solve the Problem elaborately and Refer Machine Elements and Stresses Equations from the figures or use other shortcut Methods you have or you may Solve both or in more different methods the better ?. Your solution will be use as reference for my Future Board Exam preparation/review/study. Thank you so much dear your work will be appreciated much and rated excellently.
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